【单选题】_____, this physics problem seemed simple, but when I tried to work it out, I just couldn't. [ ]
【单选题】The name of the film was on the ______ of my tongue, but I just couldn't recall it.
【单选题】A I was in a rush as always, but this time it was for an important date I just couldn’t be late for! I found myself at a checkout counter behind an elderly woman seemingly in no hurry as she paid for ...
A.
He was to meet his girlfriend.
B.
He had to go back to school soon.
C.
He was delayed by an elderly lady.
D.
He had to pick up some groceries.
【单选题】以下哪项不是 CSMA/CD的工作原理?
【判断题】CSMA/CD的工作原理是先听后发,边听边发,冲突停止,随机延迟后重发。
【单选题】His name was on the______of my tongue, but I just couldn't remember.
【单选题】正常人0G1T结果可能是
D.
2 小时血糖水平在 7 ~ 8mmol / L
【判断题】CSMA/CD方法的工作原理是:先听后发、边听边发、冲突停止、随机延迟后重发.